Metadata is received but video frame metadata is not received

[bfaizal]

Hi,

We tried NDI Streaming in webOS and we faced the similar issue. We don't have any firewall exceptions.

our case: ndi_product metadata is received but video frame metadata is not received.

0:00:00.200857500 19926 0x1a4d580 DEBUG ndireceiver src/receiver.rs:721:gstndi::receiver:<source> Received metadata at timecode 0:00:00.000000000: <ndi_tally_echo on_program="false" on_preview="false"/> 0:00:00.200874140 19926 0x1a4d580 DEBUG ndireceiver src/receiver.rs:721:gstndi::receiver:<source> Received metadata at timecode 0:00:00.000000000: <ndi_product

Please provide any suggestions on the above issue.

Detailed Logs:

0:00:00.351097700 27205 0xdc3600 DEBUG ndireceiver src/receiver.rs:580:gstndi::receiver:<source> Starting NDI connection... 0:00:00.351123800 27205 0xdc3600 DEBUG ndireceiver src/receiver.rs:584:gstndi::receiver:<source> Connecting to NDI source with NDI name 'None', URL/Address Some("10.221.44.53:5961") and URI Some("ndi://10.221.44.53:5961") 0:00:00.355911660 27205 0xe95720 DEBUG ndireceiver src/receiver.rs:688:gstndi::receiver:<source> No frame received yet, retry 0:00:00.363338440 27205 0xe95720 DEBUG ndireceiver src/receiver.rs:721:gstndi::receiver:<source> Received metadata at timecode 0:00:00.000000000: <ndi_tally_echo on_program="false" on_preview="false"/> 0:00:00.413410140 27205 0xe95720 DEBUG ndireceiver src/receiver.rs:688:gstndi::receiver:<source> No frame received yet, retry 0:00:00.463791740 27205 0xe95720 DEBUG ndireceiver src/receiver.rs:688:gstndi::receiver:<source> No frame received yet, retry

 

[brianbrice]

Does this happen using the example code from within the NDI SDK itself? Perhaps there is an issue with this rust wrapper that you're using: src/receiver.rs.

 

[bfaizal]

Hi @brianbrice
as you mentioned , we tried testing with example code provided within NDI SDK. And it worked fine for us.

Server : ./NDIlib_Send_Video_and_Audio : from example within NDI SDK Client : gst-launch-1.0 ndisrc ndi-name="LGWEBOSID\ (My\ Video\ and\ Audio)" url-address=10.221.44.53:5961 ! ndisrcdemux name=demux demux.video ! queue ! videoconvert ! lxvideosink

This was successful. But below is the failure case for us

Failure case : NDI file streaming does not work with client. Server : Stream NDI source file from VLC player Client : gst-launch-1.0 ndisrc ndi-name="LGWEBOSID\ (My\ Video\ and\ Audio)" url-address=10.221.44.53:5961 ! ndisrcdemux name=demux demux.video ! queue ! videoconvert ! lxvideosink

On further analysis on our failure case , we could see that NDIlib_recv_capture_v3 is not able to succeed in capturing audio / video data.

let res = NDIlib_recv_capture_v3( ptr, &mut video_frame, &mut audio_frame, &mut metadata_frame, timeout_in_ms, ); match res { NDIlib_frame_type_e::NDIlib_frame_type_audio => Ok(Some(Frame::Audio( AudioFrame::BorrowedRecv(audio_frame, self), ))), NDIlib_frame_type_e::NDIlib_frame_type_video => Ok(Some(Frame::Video( VideoFrame::BorrowedRecv(video_frame, self), ))), NDIlib_frame_type_e::NDIlib_frame_type_metadata => Ok(Some(Frame::Metadata( MetadataFrame::Borrowed(metadata_frame, self), ))), NDIlib_frame_type_e::NDIlib_frame_type_error => Err(()), _ => Ok(None), }

Another observation is Success case : videotestsrc works with client Server : gst-launch-1.0 videotestsrc ! ndisink Client : gst-launch-1.0 ndisrc ndi-name="LGWEBOSID\ (My\ Video\ and\ Audio)" url-address=10.221.44.53:5961 ! ndisrcdemux name=demux demux.video ! queue ! videoconvert ! lxvideosink

So any idea why videotestsrc worked with client and whereas filesrc is not working with client.